* feat: add flag to print resolved config

* chore: apply suggestions

#179 (comment)

* Prefer basic formatter having mapstructure rather than yaml tag in command

* Rename resolved with print

* Add integration tests for loading config files

* fix: commit .yamlfmt in integrationtest

* chore: remove unused fixtures in print_conf tests

* fix: add keep file to make sure empty directory in integration tests

* feat: fill version with git and ldflags

* Respect goreleaser default except using short hash

* Manually set values with git in Makefile as same as goreleaser

* chore: remove needless tag overriding

* chore: remove unused ldflag

This PR adds a feature to trim all trailing whitespace from every line
of yaml content.

This PR adds a new option to forcibly add the end of file newline if
it's not there. This is useful in the scenario where the
`retain_line_breaks` feature is disabled but the eof newline is still
wanted.